HP StorageWorks XP48 Disk Array - Manual (Page 23)

Overview of HP StorageWorks XP Provisioning Manager 23
Figure 1-6 Path Redundancy Provided by HDLM
1-7-2 Using Provisioning Manager with Volume Managers
If you want to expand a file system that was created with Provisioning Manager, you can use third-party volume
manager software. Expanding a file system means increasing the size of the file system whenever it becomes
necessary to do so, without affecting the data in the existing files created in that file system.
Volume manager products are installed on the host, and can be used either together with HDLM or separately.
If a file system might be expanded after it is created, you must specify which volume manager was used to
create the file system.
Figure 1-7 shows a system configuration (without using Dynamic Link Manager) when a
volume manager is linked. Figure 1-8 provides an overview of creating and expanding a file system.
To create a file system, the volume manager creates a volume (disk) group for each LU, and then creates one
logical volume in the volume group as shown in
Figure 1-7 . The file system is then created in that logical
volume.